Eye Active Learning - J.Prun

Question 1

What eye muscles are you using to look upward and lateral?

Answer 1

lateral rectus
and
superior rectus

Question 2

What eye muscles are required to look downward?

Answer 2

inferior rectus (mostly)

Question 3

Eyes muscles required to look medial and upward?

Answer 3

Medial rectus
and
inferior oblique

Question 4

Eye muscles required to look medial and downward

Answer 4

Medial rectus
and
superior oblique

Question 5

What gaze system is used to keep an image on the fovea while it is moved closer or farther away?

Answer 5

Vergence gaze system!

Question 6

What gaze system is used to keep an image steady on the fovea during head movements?

Answer 6

Vestibulo-ocular system

Question 7

What gaze system uses jerky movements to bring a new object onto the fovea?

Answer 7

Saccadic gaze system

Question 8

What gaze system is used to keep an image steady on the fovea when the image is moving?

Answer 8

Smooth pursuit

Question 9

What CNS tract plays a critical role in distributing sensory input to the motor nuclei on both sides of the brain.
It is involved in coordinating eye and head movements by yoking the motor nuclei of CN III, IV and VI, integrating movements directed by the frontal eye field (gaze centers) and vestibular information coming from the vestibulocochlear nerve (CN VIII).

Answer 9

The medial longitudinal fasciculus

Question 10

Divergence is the:

Answer 10

voluntary abduction of both eyes to normal position